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69 Commits

Author SHA1 Message Date
Matt Caswell
a5510df337 Added SSLErr call for internal error in dtls1_buffer_record 2014-06-01 21:36:25 +01:00
David Ramos
d1e1aeef8f Delays the queue insertion until after the ssl3_setup_buffers() call due to use-after-free bug. PR#3362 2014-06-01 21:36:25 +01:00
Dr. Stephen Henson
40088d8b81 DTLS version usage fixes. 
Make DTLS behave like TLS when negotiating version: record layer has
DTLS 1.0, message version is 1.2.

Tolerate different version numbers if version hasn't been negotiated
yet.
 2013-09-17 18:55:41 +01:00
Michael Tuexen
b62f4daac0 DTLS message_sequence number wrong in rehandshake ServerHello 
This fix ensures that
* A HelloRequest is retransmitted if not responded by a ClientHello
* The HelloRequest "consumes" the sequence number 0. The subsequent
ServerHello uses the sequence number 1.
* The client also expects the sequence number of the ServerHello to
be 1 if a HelloRequest was received earlier.
This patch fixes the RFC violation.
 2013-08-13 18:53:19 +01:00
Michael Tuexen
0c75eeacd3 DTLS handshake fix. 
Reported by: Prashant Jaikumar <rmstar@gmail.com>

Fix handling of application data received before a handshake.
 2013-08-08 13:30:49 +01:00
Dr. Stephen Henson
c6913eeb76 Dual DTLS version methods. 
Add new methods DTLS_*_method() which support both DTLS 1.0 and DTLS 1.2 and
pick the highest version the peer supports during negotiation.

As with SSL/TLS options can change this behaviour specifically
SSL_OP_NO_DTLSv1 and SSL_OP_NO_DTLSv1_2.
 2013-04-09 14:02:48 +01:00
Dr. Stephen Henson
4221c0dd30 Enable TLS 1.2 ciphers in DTLS 1.2. 
Port TLS 1.2 GCM code to DTLS. Enable use of TLS 1.2 only ciphers when in
DTLS 1.2 mode too.
 2013-03-28 14:14:27 +00:00
Dr. Stephen Henson
890f2f8b92 DTLS trace support. 
Add DTLS record header parsing, different client hello format and add
HelloVerifyRequest message type.

Add code to d1_pkt.c to send message headers to the message callback.
 2013-03-11 13:05:07 +00:00
Dr. Stephen Henson
388aff08dc Fix error codes. 2013-02-26 16:46:58 +00:00
Andy Polyakov
dd7e60bd70 ssl/*: revert "remove SSL_RECORD->orig_len" and merge "fix IV". 
Revert is appropriate because binary compatibility is not an issue
in 1.1.
 2013-02-08 10:20:48 +01:00
Andy Polyakov
2aec073a52 ssl/*: remove SSL3_RECORD->orig_len to restore binary compatibility. 
Kludge alert. This is arranged by passing padding length in unused
bits of SSL3_RECORD->type, so that orig_len can be reconstructed.
(cherry picked from commit 8bfd4c659f)
 2013-02-06 14:19:10 +00:00
Ben Laurie
e33ac0e71d Update DTLS code to match CBC decoding in TLS. 
This change updates the DTLS code to match the constant-time CBC
behaviour in the TLS.
(cherry picked from commit 9f27de170d)
 2013-02-06 14:19:07 +00:00
Ben Laurie
93cab6b319 Don't crash when processing a zero-length, TLS >= 1.1 record. 
The previous CBC patch was bugged in that there was a path through enc()
in s3_pkt.c/d1_pkt.c which didn't set orig_len. orig_len would be left
at the previous value which could suggest that the packet was a
sufficient length when it wasn't.
(cherry picked from commit 6cb19b7681)
 2013-02-06 14:19:07 +00:00
Ben Laurie
7c770d572a Add and use a constant-time memcmp. 
This change adds CRYPTO_memcmp, which compares two vectors of bytes in
an amount of time that's independent of their contents. It also changes
several MAC compares in the code to use this over the standard memcmp,
which may leak information about the size of a matching prefix.
(cherry picked from commit 2ee798880a)
 2013-02-06 14:16:55 +00:00
Dr. Stephen Henson
ea6e386008 PR: 2756 
Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>

Fix DTLS timeout handling.
 2012-03-09 15:52:33 +00:00
Dr. Stephen Henson
855d29184e Fix for DTLS DoS issue introduced by fix for CVE-2011-4109. 
Thanks to Antonio Martin, Enterprise Secure Access Research and
Development, Cisco Systems, Inc. for discovering this bug and
preparing a fix. (CVE-2012-0050)
 2012-01-18 18:15:27 +00:00
Dr. Stephen Henson
e745572493 Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>, Michael Tuexen <tuexen@fh-muenster.de> 
Reviewed by: steve

Fix for DTLS plaintext recovery attack discovered by Nadhem Alfardan and
Kenny Paterson.
 2012-01-04 23:52:26 +00:00
Dr. Stephen Henson
4817504d06 PR: 2658 
Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>
Reviewed by: steve

Support for TLS/DTLS heartbeats.
 2011-12-31 22:59:57 +00:00
Dr. Stephen Henson
7e159e0133 PR: 2535 
Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>
Reviewed by: steve

Add SCTP support for DTLS (RFC 6083).
 2011-12-25 14:45:15 +00:00
Dr. Stephen Henson
d41ce00b8c PR: 2573 
Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>
Reviewed by: steve

Fix DTLS buffering and decryption bug.
 2011-09-01 14:02:23 +00:00
Dr. Stephen Henson
a47577164c Since DTLS 1.0 is based on TLS 1.1 we should never return a decryption_failed 
alert.
 2011-01-04 19:34:20 +00:00
Dr. Stephen Henson
44959ee456 PR: 1833 
Submitted By: Robin Seggelmann <seggelmann@fh-muenster.de>

Support for abbreviated handshakes when renegotiating.
 2010-08-26 14:23:52 +00:00
Ben Laurie
c8bbd98a2b Fix warnings. 2010-06-12 14:13:23 +00:00
Dr. Stephen Henson
3122d1d382 PR: 2229 
Submitted By: Robin Seggelmann <seggelmann@fh-muenster.de>

Don't drop DTLS connection if mac or decryption failed.
 2010-04-14 00:10:05 +00:00
Dr. Stephen Henson
b7463c8818 PR: 2228 
Submitted By: Robin Seggelmann <seggelmann@fh-muenster.de>

Fix DTLS buffer record MAC failure bug.
 2010-04-14 00:03:27 +00:00
Dr. Stephen Henson
ff12f88b8e PR: 2218 
Submitted By: Robin Seggelmann <seggelmann@fh-muenster.de>

Fixes for DTLS replay bug.
 2010-04-06 12:45:04 +00:00
Dr. Stephen Henson
47e6a60e42 PR: 2219 
Submitted By: Robin Seggelmann <seggelmann@fh-muenster.de>

Fixes for DTLS buffering bug.
 2010-04-06 12:40:19 +00:00
Dr. Stephen Henson
04f9095d9e Fix unitialized warnings 2009-10-04 16:52:51 +00:00
Dr. Stephen Henson
e9f613acea PR: 2039 
Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>
Approved by: steve@openssl.org

DTLS listen bug fix,
 2009-09-15 22:48:57 +00:00
Dr. Stephen Henson
480b9e5d29 PR: 2006 
Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>
Approved by: steve@openssl.org

Do not use multiple DTLS records for a single user message
 2009-08-26 11:51:57 +00:00
Dr. Stephen Henson
b972fbaa8f PR: 1997 
Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>
Approved by: steve@openssl.org

DTLS timeout handling fix.
 2009-08-12 13:19:54 +00:00
Dr. Stephen Henson
0f65d5eba5 PR: 1993 
Fix from 0.9.8-stable.
 2009-07-24 11:52:55 +00:00
Dr. Stephen Henson
5c168710ac Update from 1.0.0-stable. 2009-07-13 11:44:30 +00:00
Dr. Stephen Henson
fc007d021e Fix warnings. 2009-07-04 12:04:06 +00:00
Dr. Stephen Henson
baacd8d4e5 PR: 1981 
Submitted by: Robin Seggelmann <seggelmann@fh-muenster.de>
Approved by: steve@openssl.org

DTLS record header bugfix.
 2009-07-04 11:38:40 +00:00
Dr. Stephen Henson
9458530d45 Update from 1.0.0-stable 2009-07-01 11:29:25 +00:00
Dr. Stephen Henson
58f41a926a Updates from 1.0.0-stable 2009-06-05 14:59:26 +00:00
Dr. Stephen Henson
8d932f6fd7 Update from 1.0.0-stable 2009-05-16 16:18:19 +00:00
Dr. Stephen Henson
eb38b26dbc Update from 1.0.0-stable. 2009-05-15 22:58:40 +00:00
Dr. Stephen Henson
ef236ec3b2 Merge from 1.0.0-stable branch. 2009-04-23 16:32:42 +00:00
Dr. Stephen Henson
8711efb498 Updates from 1.0.0-stable branch. 2009-04-20 11:33:12 +00:00
Dr. Stephen Henson
e5fa864f62 Updates from 1.0.0-stable. 2009-04-15 15:27:03 +00:00
Ben Laurie
0eab41fb78 If we're going to return errors (no matter how stupid), then we should 
test for them!
 2008-12-29 16:11:58 +00:00
Ben Laurie
fe1c7fecf1 Reverse incorrect earlier fix. 2008-12-29 11:47:08 +00:00
Ben Laurie
9b9cb004f7 Deal with the unlikely event that EVP_MD_CTX_size() returns an error. 
(Coverity ID 140).
 2008-12-27 02:09:24 +00:00
Lutz Jänicke
570006f3a2 Half of the commit for 0.9.8 as the bitmap handling has changed. 
(Firstly... ommitted)

Secondly, it wasn't even _dropping_ the offending packets, in the
non-blocking case. It was just returning garbage instead.
PR: #1752
Submitted by: David Woodhouse <dwmw2@infradead.org>
 2008-10-13 06:43:03 +00:00
Andy Polyakov
51ec776b7d dtls1_write_bytes consumers expect amount of bytes written per call, not 
overall.
PR: 1604
 2008-09-14 17:56:15 +00:00
Andy Polyakov
d493899579 DTLS didn't handle alerts correctly. 
PR: 1632
 2008-09-13 18:24:38 +00:00
Andy Polyakov
659f7f3168 Don't let DTLS ChangeCipherSpec increment handshake sequence number. 
PR: 1587
 2007-10-17 21:15:48 +00:00
Andy Polyakov
d527834a1d Basic idea behind explicit IV is to make it unpredictable for attacker. 
Until now it was xor between CBC residue and 1st block from last datagram,
or in other words still predictable.
 2007-09-30 22:01:36 +00:00